Platinum CCC-NHC benzimidazolyl pincer complexes: Synthesis, characterization, photostability, and theoretical investigation of a blue-green emitter

Aron J. Huckaba, Bei Cao, T. Keith Hollis, Henry U. Valle, John T. Kelly, Nathan I. Hammer, Allen G. Oliver, Charles Edwin Webster

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

The recently reported metallation/transmetallation route for the synthesis of CCC-bis(NHC) pincer ligand architectures was extended to 1,3-bis(3′- (trimethylsilylmethyl)-benzimidizol-1′-yl)benzene. The precursor was metallated with Zr(NMe2)4 and transmetallated to Pt using [Pt(COD)Cl2]. This Pt complex was found to resist photobleaching under UV irradiation in ambient conditions. Density functional theory (DFT) computations were used to generate the emission spectrum of the complex and reveal that this spectrum is the result of a transition from the triplet excited state (T1) to the ground state (S0). The Pt complex's molecular structure was determined by X-ray crystallography. The UV-vis absorption and emission spectra in solution and the solid-state emission spectra are reported. The solid-state photostability data and the radiative lifetime is also reported.

Original languageEnglish
Pages (from-to)8820-8826
Number of pages7
JournalDalton Transactions
Volume42
Issue number24
DOIs
StatePublished - Jun 28 2013

ASJC Scopus subject areas

  • Inorganic Chemistry

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